wiring programmer for Oil Combi

[downtheslope5]

Hi. looking for wiring advice / diagram for drayton twin channel programmer to Worcester external oil combi. (previous boiler had plug in programmer but this does not and wireless one not an option) I have drawn 2 x 3 & earth through to boiler so have plenty options.
No room stat involved so should be simple but the diagrams for boiler and programmer bein from different manufactures are not clear.

any help appreciated

 

[Echo the husky]

You haven't provided any model numbers. Most Worcesters have a separate connector for connecting an external programmer. Installing a thermostat is a good idea.

 

[holty]

Great info Drayton mitime with rf room stat and twin channel programmer is a good option.

 

[downtheslope5]

You haven't provided any model numbers. Most Worcesters have a separate connector for connecting an external programmer. Installing a thermostat is a good idea.

greenstar 18/25 external heatslave oil combi / drayton LP522. All rads have TRV's

 

[Echo the husky]

Just wire the programmer to X4 as shown in the Bosch diagram, following the written instructions, the HW and CH connections are made to the ON terminals in the programmer. Heat resisting cable should be used within the boiler enclosure.

 

[oilboffin]

Don't forget the frost stat